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Sunlight is a portion of the electromagnetic radiation given off by the Sun, in particular infrared, visible, and ultraviolet light. On Earth, sunlight...

The Automated Transfer Vehicle, originally Ariane Transfer Vehicle or ATV, was an expendable cargo spacecraft developed by the European Space Agency (ESA)...

In physical cosmology, Big Bang nucleosynthesis (also known as primordial nucleosynthesis, and abbreviated as BBN) is the production of nuclei other than...

Underwater habitats are underwater structures in which people can live for extended periods and carry out most of the basic human functions of a 24-hour...

The Kaituozhe (Chinese: 开拓者; pinyin: kāi tuò zhě; lit. 'pioneer') or KT rocket family is a series of launch vehicles built by the China Aerospace Science...

In planetary astronomy and astrobiology, the Rare Earth hypothesis argues that the origin of life and the evolution of biological complexity, such as sexually...

A booster is a rocket (or rocket engine) used either in the first stage of a multistage launch vehicle or in parallel with longer-burning sustainer rockets...

The highest specific impulse chemical rockets use liquid propellants (liquid-propellant rockets). They can consist of a single chemical (a monopropellant)...

JCSAT-2B, known as JCSAT-14 before commissioning, is a geostationary communications satellite operated by SKY Perfect JSAT Group and designed and manufactured...

Oph 162225-240515, often abbreviated Oph 1622, and also known as Oph 11, is a pair of brown dwarfs that have been reported as orbiting each other. The...

The Constellation Space Suit was a planned full pressure suit system that would have served as an intra-vehicular activity (IVA) and extra-vehicular activity...

Sigma Librae (σ Librae, abbreviated Sigma Lib, σ Lib) is a binary star in the constellation of Libra. The apparent visual magnitude is +3.29, making it...

A liquid rocket booster (LRB) uses liquid fuel and oxidizer to give a liquid-propellant or hybrid rocket an extra boost at take-off, and/or increase the...

Okishio's theorem is a theorem formulated by Japanese economist Nobuo Okishio. It has had a major impact on debates about Marx's theory of value. Intuitively...

4581 Asclepius /əˈskliːpiəs/, provisional designation 1989 FC, is a sub-kilometer-sized asteroid, classified as near-Earth object and potentially hazardous...

5026 Martes (prov. designation: 1987 QL1) is a carbonaceous asteroid from the inner region of the asteroid belt, approximately 9 kilometers (6 miles) in...

Adela Emilia Ringuelet (27 March 1930 – 26 April 2023) was an Argentine astrophysicist and astronomer at the Félix Aguilar Observatory in Argentina. She...

WISEA J114724.10−204021.3 (abbreviated WISEA 1147) is a brown dwarf in the TW Hydrae association, a nearby group of very young stars and brown dwarfs....

Galilaei is a large impact crater on Mars in the region known as Margaritifer Terra. The crater is in the southern part of the Oxia Palus quadrangle (MC-11)...

The great comet of 1472 was visible from Christmas Day 1471 to 1 March 1472 (Julian Calendar), for a total of 59 days. The comet passed 0.07 AU from Earth...